Hi, I have a Thinkpad T410 and the brightness keys do not work in MATE desktop, how do I make them work?
Thanks
Brightness keys Thinkpad T410
Re: Brightness keys Thinkpad T410
Do you have the appropriate module loaded?
Try in a terminal as root
kldload acpi_ibm
If that doesn't work try
kldload acpi_video
And see if that helps
Try in a terminal as root
kldload acpi_ibm
If that doesn't work try
kldload acpi_video
And see if that helps
Re: Brightness keys Thinkpad T410
Here's a workaround. https://codeberg.org/nansys-dev/brightness-control
Re: Brightness keys Thinkpad T410
The brightness keys don't work but doing "sysctl dev.api_ibm.0.lcd_brightness=0" or any other number works.
Re: Brightness keys Thinkpad T410
This worked

And now it works perfectly!
Last edited by yaslam on Sun Mar 24, 2024 1:35 pm, edited 2 times in total.
Re: Brightness keys Thinkpad T410
Thanks for the workaround.chadbsd wrote: ↑Thu Mar 21, 2024 8:43 am Here's a workaround. https://codeberg.org/nansys-dev/brightness-control
